derp.py

#!/usr/bin/env python3
import os,sys
import vapoursynth as vs

core = vs.Core()

plugin_dir = "/usr/local/lib/"

core.std.LoadPlugin("{}libffms2.2.dylib".format(plugin_dir))
core.std.LoadPlugin("{}libscxvid.dylib".format(plugin_dir))
# print("%s" % core.list_functions()) # list all functions

input_video = os.path.abspath(sys.argv[1])

vid = core.ffms2.Source(input_video)
vid = core.resize.Bicubic(vid, format=vs.YUV420P8)
vid = core.scxvid.Scxvid(vid,"{}.scxvid".format(input_video))

devnull = open('/dev/null', 'w')
vid.output(devnull, y4m=False)